What is CVE-2026-96281?

CVE-2026-96281 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Access Control. CVSS score: 6.2/10. Published 2026-09-27.

How severe is CVE-2026-96281?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-96281

On a multi-user system, a user with an active local login session could downgrade a system-wide Flatpak app to an older version by removing the app's remote ref via the unprivileged system-helper RemoveLocalRef method, causing the anti-downgrade check to fail to find a reference date. A malicious local user could use this to expose other users of the same system to an app version with unfixed vulnerabilities.

Published 2026-09-27 · last modified 2026-09-27.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

access.redhat.com/security/cve/CVE-2026-96281 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)
github.com/flatpak/flatpak/security/advisories/GHSA-q4gr-vc25-57m5

Frequently asked questions

What is CVE-2026-96281?: CVE-2026-96281 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Access Control. CVSS score: 6.2/10. Published 2026-09-27.
How severe is CVE-2026-96281?: Medium severity. CVSS v3 base score is 6.2 out of 10.